Those aren't rare issues when one begins vaping. Be sure to drink LOTS of water to keep yourself hydrated.
And be patient with yourself as you develop your technique. Sometimes we use different muscles or overuse muscles as we vape in the beginning because we are so conscious of how we are doing it.
And do try different nicotine levels. You might very well be getting more than you need. Or less... and therefore vaping more often. Finding a balance for yourself takes a bit of time and experimentation. (I'm one of those lucky people who gets the hiccups when I have a bit too much nicotine. It automatically tells me to take a break from vaping!)
Do try both PG and VG based liquids. Most people aren't particularly sensitive to either one, but it is worth finding out if one works better for you than the other.
The burning tongue might be due to nicotine, PG, VG, or simply overuse. (Yeah.... LOL - I know it sounds funny!)
The moral is experiment a lot and give it a time. I'm sure things will start to straighten themselves out. Come back to the forum anytime you have a question or concern. The people here are great!
